Rename the wonderful sponsor who hosts our search (#2790)

Author: ericholscher

readthedocs/templates/search/elastic_search.html

@@ -99,7 +99,7 @@ <h5>Taxonomy</h5>
 
 {% block sponsor %}
 <div class="search-sponsored">
-Search is sponsored by <a href="https://www.elastic.co/">Elastic</a>, and hosted at <a href="http://found.no/">Found</a>.
+Search is sponsored by <a href="https://www.elastic.co/">Elastic</a>, and hosted on <a href="https://www.elastic.co/cloud">Elastic Cloud</a>.
 </div>
 {% endblock %}